a circle of constant longitude passing through a given place on the earth's surface and the terrestrial poles
(地球的)子午线,经线。
【天文】 (天体的)子午线,经线。
(in acupuncture and Chinese medicine)each of a set of pathways in the body along which vital energy is said to flow. There are twelve such pathways associated with specific organs.
(针灸及中医用语)经脉。
relating to or situated at a meridian
(与)子午线(有关)的,(与)经线(有关)的;在子午线的
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the meridian moon. 中天明月。
"late Middle English: from Old French